Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

6
2
7
1
5
9
4
8
3
1
1
8
4
6
3
9
7
2
9
3
4
2
8
7
5
1
6
8
3
6
9
7
4
2
1
5
7
9
1
2
3
1  2  3
4  5  6
7  8  9
6
8
4
4
5
2
8
6
1
3
7
9
7
       
4      
      9
8
3
       
4      
      9
2
5
6
1
1
1
5
8
4
6
3
2
9
6
2
3
1
9
5
7
4
8

 

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